Coloring bitmap cycle
Simple circle divided into 24 sectors, can be painted in different colors like a mosaic. You can do if you face each sector to add numbers. And also can serve as a grid to mark the septenary drawings, such as flowers or wheel disks. But better to just relax and play with flowers, painting this graphic mosaic.
Coloring in a raster (pixel) format. If you use a graphics editor such as adobe Photoshop, then using the fill can easily paint a picture. Outlines for coloring perfect to spend some time coloring on the computer. For children this can be fun and not an obsessive study of the work in the graphic editors, and knowledge of the world in different shades and colors.
Coloring can be printed, and then paint.